I write Asciidoctor files in Vim and look for a good syntax highlighting plugin.
The Asciidoctor homepage "Installing the Toolchain" links to the old Asciidoc homepage which links to the plugin dagwieers/asciidoc-vim
https://github.com/dagwieers/asciidoc-vim/ . Unfortunately the project wasn't updated anymore in the last two years and there are many features from Asciidoctor unsupported (f.ex. ATX headers...).
Can you suggest me an improved syntax highlighting plugin for Vim?